Q. No.When we homogenize any tissues in an acid the acid soluble pool represents
1.
Cytoplasm
2.
Cell membrane
3.
Nucleus
4.
Mitochondria
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What level of protein organization structure explains the 3-D shape of an enzyme?
| 1. primary structure | 2. tertiary structure |
| 3. secondary structure | 4. quaternary structure |
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The graph shown below shows the effect of a certain factor on the rate of a reaction catalyzed by an enzyme. The X-axis would show the said factor and that will be:
| 1. substrate concentration | 2. pH |
| 3. enzyme concentration | 4. temperature |
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If an active-site directed inhibitor is present in the medium, the curve that will represent the progress of the chemical reaction will be shown by the letter:
| 1. D | 2. C |
| 3. A | 4. B |
A change in an amino acid located distantly from the active site of an enzyme can affect the specificity of the enzyme towards its substrate by:
| 1. | making the enzyme unstable |
| 2. | cause a relocation of the enzyme within a cell |
| 3. | changing the shape of the protein |
| 4. | changing the optimum pH and temperature values for the enzyme |
An amino acid that is negative charged amongst the following will be:
| 1. Glutamic acid | 2. Lysine |
| 3. Arginine | 4. Histidine |
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The metal ion that acts as a co-factor for both alcohol dehydrogenase and carbonic anhydrase is:
| 1. | Magnesium | 2. | Iron |
| 3. | Zinc | 4. | Nickel |
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Consider the following two statements regarding enzyme action:
| I: | Co-factors play a crucial role in the catalytic activity of the enzyme. |
| II: | Catalytic activity is reduced when the co-factor is removed from the enzyme. |
Of the above statements:
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
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Assuming they all had the same number of carbon atoms, which of the following has the most C-H bonds?
1. an unsaturated fat
2. a polyunsaturated fat
3. a polysaccharide
4. a saturated fat
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An alpha helix is a:
1. primary structure of a protein
2. secondary structure of a protein
3. tertiary structure of a protein
4. quaternary structure of a protein
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